When Valve head honcho Gabe Newell posted on Reddit yesterday, the community freaked out. And although some people were interested in the racing link Newell submitted, most Redditors want to ask questions about Valve that have been on their mind for years, like "Where's Left 4 Dead 3?" and "How long did it take you to grow that beard?"

A guy posts on Reddit with the username GabeNewellBellevue. People ask him to prove it's the…
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So Newell has agreed to participate in one of Reddit's greatest services, the frankly-titled Ask Me Anything. Once his charity hits $500,000 in hospital donations—which should be easy, considering this is Gabe Newell and the Internet—he'll let anyone ask him questions about life, the universe, and Half-Life.

You can donate right here. No word on how much they've earned so far, but I'm sure the charity will clear half a million by the end of the day. This is Gabe Newell we're talking about.